We give dogs time space and love we can spare and dogs give us their all.A. in allB. in f

问题补充：

We give dogs time，space and love we can spare，and dogs give us their all.

A. in all

B. in fact

C. in short

D. in return

答案：

A. in all

B. in fact

C. in short

(答案→)D. in return

解析：句意：我们抽出时间、空间和爱给予狗，而狗回报给我们的则是它们的全部。in all“总共”，in fact“实际上”，in short“简而言之”，in return“作为报答”。故选D。